Home / 19,031.76-28,535.46-9,151.36

Finding the Fourth Proportional to 19,031.76, 28,535.46 and 9,151.36

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Solution

The fourth proportional to 19,031.76, 28,535.46 and 9,151.36 is: 13,721.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,031.76 : 28,535.46 = 9,151.36 : x
  2. Step 2: Convert to fraction form
    19,031.76/28,535.46 = 9,151.36/x
  3. Step 3: Cross multiply
    19,031.76x = 28,535.46 × 9,151.36
  4. Step 4: Simplify right side
    19,031.76x = 261,138,267.23
  5. Step 5: Solve for x
    x = 261,138,267.23/19,031.76
  6. Step 6: Final answer
    x = 13,721.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.